sylverboss writes: Acquisition of Motorola's mobile network infrastructure business gives Nokia an entry to the U.S. market, where it has long struggled. After several months of failing to break itself up, Motorola finally succeeded Monday as it sold off most of its mobile network infrastructure unit for $1.2 billion to Nokia Siemens Networks (NSN). The deal gives Nokia — the world's leading supplier of mobile handsets — an invigorated entrance to the U.S. market where it has lagged far behind other handset suppliers such as Apple.